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Evolver is a monophonic (one voice)
synthesizer.
Click to see the Evolver
Signal Flow (PDF format).
Four oscillators in total: two analog, two
digital
Analog Oscillator waveshape are Sawtooth,
Triangle, Saw-Triangle, and Pulse (with voltage-controlled
analog Pulse-Width modulation)
Digital Oscillators select from 96
wavetables from the Prophet-VS (128 x 12 bits), and 32
user-loadable (via MIDI) Wavetables (128 x 16 bits). The Digital
Oscillators get trashy as the frequency gets higher, as with the
original VS.
Hard Sync on the analog oscillators
FM and Ring Mod on the digital oscillators
Separate Glide per oscillator
Real voltage-controlled analog lowpass
filters - not digital recreations. 4-pole/2-pole switchable,
fully resonant (in 4-pole mode). There are two separate filters,
one for the left channel and one for the right.
Analog Voltage Controlled Amplifiers (VCA),
again one for each channel.
Dual digital 4-pole Highpass filters (one
per channel); place before or after analog electronics.
Stereo audio inputs; Noise generator
Envelope Follower and Peak Detect from
External Input to use as modulation sources
External Input can be used to gate envelopes
and/or step the Sequencer
Three snappy ADSR envelopes
Four LFOs (sync with sequencer and MIDI)
Dual (left and right channel) tunable
feedback loops; modulate frequency and amount
Delay with 3 taps; each with separate time
and amount modulation. Syncs to sequencer/MIDI. Normal feedback
and additional feedback path through analog filters
Distortion! Digital, one for each channel,
can be placed before or after analog electronics
3 Banks of 128 Programs for 384 total
Programs - dump to/from MIDI
16 x 4 Analog-style sequencer - syncs with
MIDI
Extensive Modulation capabilities, including
audio-range modulation. Bipolar (+/-) modulation.
Easy to program matrix-style front panel
with 8 endless-turn rotary encoders
A bunch of MIDI stuff
The internal computer and DSP
chips can be reprogrammed via MIDI, for easy feature additions
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